The Swanson Flo Blog is dedicated to provide educational and new product information on process control instrumentation, control valves, and valve automation. For more information on these products, visit SwansonFlo.com or call 800-288-7926.

Saturday, October 27, 2018

Sharktooth™ Control Valves, by Yeary Controls, provide all the latest in control valve innovation, technology and valve acoustics. By inserting the patented Yeary Controls Throttling Trim Cartridges into their Triple Eccentric Butterfly Valves, control valves are created that exhibit significant improvements in performance, simplicity, and economy.

Sharktooth™ control valves have excellent throttling characteristics and, also, provide aerodynamic noise attenuation, and liquid cavitation reductions. They are suitable for a wide range of services from cryogenic temperatures, up to 850° F, including liquids, gasses, and steam.

The Sharktooth “Throttling Trim Cartridge” is used to turn the Yeary Triple-Off-Set Butterfly Valves into excellent throttling control valves. Now, just one style of valve can be used for both on-off and control applications.

Thursday, August 9, 2018

This video introduces the viewer to basic fluid properties such as viscosity, viscosity index, compressibility, cleanliness, filtration and additives. These basics apply throughout process control, from flow instrumentation to valve automation.

Founded in 1960, Swanson Flo has long maintained our position as an industry leader in process automation with unmatched project success leveraging industry preferred products and services.

Wednesday, March 21, 2018

Turbine flow meters are process instruments used in a variety of industrial applications to measure the flow of a fluids. These types of flowmeters operate under the simple principle that the rotation of the turbine will be constant as the turbine is acted upon by a fluid passing through the flowmeter.

Turbine flow meters use the mechanical energy of the fluid to rotate a turbine blade in the flow stream and provide precise and accurate flow measurement. The flow impinging upon the turbine blades causes the rotor to spin. The angular velocity of a turbine flow meter is proportional to flow rate. The rotational velocity of the turbine is interpreted as an electrical frequency output through the use of magnetic pick-ups. As each turbine blade passes by the magnetic pick-up coil, a voltage pulse is generated which is a measure of the flow rate. The total number of pulses gives a measure of the total flow which can be totalized with a maximum error of a single pulse.

The relationship of the angle of the turbine meter blades to the flow stream governs the angular velocity and the output frequency of the meter. The sharper the angle of the turbine blade, the higher the frequency output.

Easy to maintain while also boasting reliability, turbine flow meters are known to be cost-effective solutions that make an ideal device for measuring flow rate. Aside from excellent rangeability, they also provide high response rate and high accuracy compared to other available types of flow meters. Turbine flow meters are sturdy, need very little maintenance, and seldom exhibit much deviation in performance.

These meters are used in multiple industries to reliably measure the velocity of a variety of liquids, gases and vapors over a very broad range of flow rates, temperatures, and viscosities. Turbine flow meters are used to provide measurement information in cryogenic applications, crude oil production, chemical processing, blending systems, storage, off-loading, product loading, and many other applications across many industries.

Tuesday, July 25, 2017

“Why do we need to measure
in mass flow? What is the difference between
ACFM and SCFM? Why are pressure and
temperature correction not required when
measuring with a thermal mass flow meter?
What is the thermal mass flow measurement
theory? What are common applications to use
thermal mass flow meters?” The white paper below attempts to explain these questions and more.